0000000001306591

AUTHOR

Dan Dumitrescu

showing 4 related works from this author

Acute surgical abdomen during the COVID‑19 pandemic: Clinical and therapeutic challenges

2021

The present study investigated the effects of the COVID-19 pandemic on the clinical presentation and therapeutic management of acute surgical abdomen. A retrospective study of emergency hospitalizations with a diagnosis of acute surgical abdomen between April and July 2020 vs. a similar period in 2019 was performed. The observation sheets and the operating protocols were analyzed. Between April and July 2020, 50 cases of acute surgical abdomen were hospitalized and treated, compared to 43 cases in the same period last year. The main types of pathology in both groups included: Occlusions (60%, respectively 44.2% in 2019) and peritonitis (32%, respectively 41.8% in 2019). There was an increas…

0301 basic medicineCancer Researchmedicine.medical_specialtyAbdominal painbusiness.industryGeneral surgeryPerforation (oil well)PeritonitisRetrospective cohort studyArticlesGeneral Medicinemedicine.diseaseAsepsis03 medical and health sciences030104 developmental biology0302 clinical medicinemedicine.anatomical_structureImmunology and Microbiology (miscellaneous)Acute abdomen030220 oncology & carcinogenesisPandemicmedicineAbdomenmedicine.symptombusinessExperimental and Therapeutic Medicine
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Cyanido-bridged {FeIIILnIII} heterobimetallic chains assembled through the [FeIII{HB(pz)3}(CN)3]−complex as metalloligand: synthesis, crystal structu…

2021

A new series of cyanido-bridged {FeIIILnIII} heterobimetallic chains of general formula {[(NC)FeIII{HB(pz)3}(μ-CN)2LnIII(bpdo)(NO3)2(H2O)]·CH3CN}n [HB(pz)3− = hydrotris(pyrazol-1-yl)borate, bpdo = 2,2′-bipyridine-N,N′-dioxide and Ln = Gd (1), Tb (2), Dy (3) and Ho (4)], were obtained by using the low-spin [Fe{HB(pz)3}(CN)3]− complex as a metalloligand towards the preformed [Ln(bdpo)(NO3)2(H2O)]+ species. Single-crystal X-ray diffraction shows that 1–4 are isostructural compounds that crystallize in the monoclinic P21/c space group. Their crystal structure consists of neutral 1D coordination polymers where the [Fe{HB(pz)3}(CN)3]− fragment adopts a bis-monodentate coordination mode, through t…

Ligand field theoryLanthanideCrystallographyMaterials scienceCoordination sphereOctahedronLigandGeneral Materials ScienceGeneral ChemistryCrystal structureIsostructuralCondensed Matter PhysicsMonoclinic crystal systemCrystEngComm
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An original 3D coordination polymer constructed from trinuclear nodes and tetracarboxylato spacers

2021

A novel 3D coordination polymer, ∞3[{Cu3(felden)}4(btec)3]·17H2O, has been assembled using cationic trigonal nodes, [CuII3(felden)]3+, generated by a tricompartmental ligand, H3felden, which results from the Schiff condensation reaction between 2,4,6-triformylphloroglucinol and N,N-dimethylethylenediamine. The tetraanion of the 1,2,4,5-benzenetetracaboxylic acid (H4btec) was employed as a spacer. The structure of 1 shows large icosahedral cavities and channels and the magnetic interaction between the copper(II) ions within the triangles is weak and antiferromagnetic.

Materials scienceLigandCoordination polymerIcosahedral symmetryCationic polymerizationchemistry.chemical_elementGeneral ChemistryCondensed Matter PhysicsCondensation reactionCopperIonCrystallographychemistry.chemical_compoundchemistryAntiferromagnetismGeneral Materials ScienceCrystEngComm
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CCDC 2044634: Experimental Crystal Structure Determination

2020

Related Article: Alina S. Dinca, Andreea Dogaru, Adrian E. Ion, Simona Nica, Dan Dumitrescu, Sergiu Shova, Francesc Lloret, Miguel Julve, Marius Andruh|2021|CrystEngComm|23|1332|doi:10.1039/D0CE01667E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscatena-[tetrakis(mu-246-tris({[2-(dimethylamino)ethyl]imino}methyl)benzene-135-triolato)-tris(mu-benzene-1245-tetracarboxylato)-dodeca-copper(ii) unknown solvate]Experimental 3D Coordinates
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